/*
 * citygml4j - The Open Source Java API for CityGML
 * https://github.com/citygml4j
 *
 * Copyright 2013-2020 Claus Nagel <claus.nagel@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.citygml4j.model.gml.geometry;

import org.citygml4j.model.common.base.ModelObject;
import org.citygml4j.model.common.child.Child;
import org.citygml4j.model.gml.feature.AbstractFeature;

public interface SRSReferenceGroup extends SRSInformationGroup {
	String getSrsName();
	Integer getSrsDimension();
	boolean isSetSrsName();
	boolean isSetSrsDimension();

	void setSrsName(String srsName);
	void setSrsDimension(Integer srsDimension);
	void unsetSrsName();
	void unsetSrsDimension();

	default String getInheritedSrsName() {
		if (getSrsName() == null && this instanceof Child) {
			Child child = (Child) this;
			ModelObject parent;

			while ((parent = child.getParent()) != null) {
				if (parent instanceof AbstractGeometry)
					return ((AbstractGeometry)parent).getInheritedSrsName();
				else if (parent instanceof AbstractFeature) {
					AbstractFeature feature = (AbstractFeature)parent;
					if (feature.isSetBoundedBy()
							&& feature.getBoundedBy().isSetEnvelope()
							&& feature.getBoundedBy().getEnvelope().isSetSrsName())
						return feature.getBoundedBy().getEnvelope().getSrsName();
				}

				if (parent instanceof Child)
					child = (Child) parent;
				else
					break;
			}
		}

		return getSrsName();
	}
}
